Suppressed warnings about slim3 project and slim3-gen project.
Replaced deprecated class "ErrorHandler" to "ConsistentErrorHandler".
Copied slim3-gen to slim3-gen-jsr269.
Modified slim3-gen-jsr269/pom.xml, rename project.
Added bootstrap settings and classes for JSR269.
Transplanted Logger class.
Transplanted com.sun.mirror.* to javax.lang.model.
Updated slim3-gen-jsr269 pom.xml
Fix some problems and suppress warning
Add -proc:none
Fixed maven-shade-plugin settings.
Fixed can't pickup valid attribute listener class bug.
Removed com.sun,mirror dependency, and rename jsr269 packages to original.